Check division is integer or float solidity











up vote
2
down vote

favorite












Suppose i have a contract with decimals and total Supply as follow.
How can i check if tokenAmountInWei pass in is integer value in form of ether.



decimals = 18

totalSupply = 1000000



function someFunction(uint tokenAmountInWei) {
// check if tokenAmountInWei convert to ether is integer value
}









share|improve this question







New contributor




vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
























    up vote
    2
    down vote

    favorite












    Suppose i have a contract with decimals and total Supply as follow.
    How can i check if tokenAmountInWei pass in is integer value in form of ether.



    decimals = 18

    totalSupply = 1000000



    function someFunction(uint tokenAmountInWei) {
    // check if tokenAmountInWei convert to ether is integer value
    }









    share|improve this question







    New contributor




    vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      Suppose i have a contract with decimals and total Supply as follow.
      How can i check if tokenAmountInWei pass in is integer value in form of ether.



      decimals = 18

      totalSupply = 1000000



      function someFunction(uint tokenAmountInWei) {
      // check if tokenAmountInWei convert to ether is integer value
      }









      share|improve this question







      New contributor




      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      Suppose i have a contract with decimals and total Supply as follow.
      How can i check if tokenAmountInWei pass in is integer value in form of ether.



      decimals = 18

      totalSupply = 1000000



      function someFunction(uint tokenAmountInWei) {
      // check if tokenAmountInWei convert to ether is integer value
      }






      solidity erc-20






      share|improve this question







      New contributor




      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






      New contributor




      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked yesterday









      vincentsty

      1324




      1324




      New contributor




      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      vincentsty is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          5
          down vote



          accepted










          This should work:



          pragma solidity ^0.4.24;

          contract Test {

          function checkIntegerETH(uint a) public pure returns (bool) {
          return (a % 1 ether == 0);
          }
          }


          Here we are basically confirming that a has no remainder when being divided by 1018 (1 ether).






          share|improve this answer





















            Your Answer








            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "642"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            convertImagesToLinks: false,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: null,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });






            vincentsty is a new contributor. Be nice, and check out our Code of Conduct.










             

            draft saved


            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fethereum.stackexchange.com%2fquestions%2f62448%2fcheck-division-is-integer-or-float-solidity%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            5
            down vote



            accepted










            This should work:



            pragma solidity ^0.4.24;

            contract Test {

            function checkIntegerETH(uint a) public pure returns (bool) {
            return (a % 1 ether == 0);
            }
            }


            Here we are basically confirming that a has no remainder when being divided by 1018 (1 ether).






            share|improve this answer

























              up vote
              5
              down vote



              accepted










              This should work:



              pragma solidity ^0.4.24;

              contract Test {

              function checkIntegerETH(uint a) public pure returns (bool) {
              return (a % 1 ether == 0);
              }
              }


              Here we are basically confirming that a has no remainder when being divided by 1018 (1 ether).






              share|improve this answer























                up vote
                5
                down vote



                accepted







                up vote
                5
                down vote



                accepted






                This should work:



                pragma solidity ^0.4.24;

                contract Test {

                function checkIntegerETH(uint a) public pure returns (bool) {
                return (a % 1 ether == 0);
                }
                }


                Here we are basically confirming that a has no remainder when being divided by 1018 (1 ether).






                share|improve this answer












                This should work:



                pragma solidity ^0.4.24;

                contract Test {

                function checkIntegerETH(uint a) public pure returns (bool) {
                return (a % 1 ether == 0);
                }
                }


                Here we are basically confirming that a has no remainder when being divided by 1018 (1 ether).







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered yesterday









                Shawn Tabrizi

                3,8342521




                3,8342521






















                    vincentsty is a new contributor. Be nice, and check out our Code of Conduct.










                     

                    draft saved


                    draft discarded


















                    vincentsty is a new contributor. Be nice, and check out our Code of Conduct.













                    vincentsty is a new contributor. Be nice, and check out our Code of Conduct.












                    vincentsty is a new contributor. Be nice, and check out our Code of Conduct.















                     


                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fethereum.stackexchange.com%2fquestions%2f62448%2fcheck-division-is-integer-or-float-solidity%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    サソリ

                    広島県道265号伴広島線

                    Setup Asymptote in Texstudio